Feed d



N (11. I e) F. 1). PARKER;

WELL DRILL.

No. 295,045; Patented Man-'11, 1884.

@CWITNESSES provide for conveniently removing the debris PATENT Prion.

. FRED D. PARKER, OF

DENVER, COLORADO.

-MWELL.-DR|LL.

SPECIFICUJJIION forming part of Letters Patent No. 295,045, dated March11, 1884.

Application filed November 2, 1883.

ver, in the county of Arapahoe and State of Colorado, have inventedcertain new and-useful Improvements in YVelLDrills, of which thefollowing is a specification, referencebeing ha (1 therein to theaccompanying drawings.

This invention relates to certain improve ments in well-drills; and ithas for its objects to provide a drill which will cut rapidly, and whichwill permit the dbris or portions disintegrated to rise readily abovethe cuttingedge of the drill, so as not to interfere with the work, asmore fully hereinafter specified.

The invention further has for its object to or core cut by the drillfrom time to time.

These objects I attain by the means illustrated in the accompanyingdrawings, in which Figure 1 represents a perspective view of my improveddrill, and Fig. 2 a view partly in, elevation and partly in section ofmy im proved device for removing the dbrisor core left by the drill.

In the drawings, the letter Aindicates a metallic tube, which is slotteddiametrically on opposite sides near its lower end, as shown in Fig. 1of the drawings. The lower edges of the drill are serrated, or formedwith teeth B, so as to cut into the material at each drop of the saiddrill. The drill at its upper end is provided with the usual bail, G,to' which the rope or chain by which it may be operated is attached.

In Fig. 2, the letter D indicates a tube of the same size as the drillbefore mentioned diametrically. The lower end of the said tube, however,is not serrated, but at one side is provided with a slot or opening, E,through which is looped a wire, F, which is also looped around one sideof an annulus, G, of the same (No model.)

diameter as the said tube D, forming ahinged joint for the two parts.

The tube D, like the drill-tube, is provided with a bail at its top, towhich may be attached the rope or chain for operating it.

; The operation of my invention will be understood in connection withthe above description, and is as follows: The drill-tube is lifted anddropped in the usual manner, the serrated edges cutting into and throughthe rock or soil to be bored. The longitudinal slots permit the dbris orsubstance removed to rise freely out of the way, so as to give the drillfree working room. When the drill has boreda certain distance, andfurther work becomes impractidrill is removed and the tube D is insertedin the bore. The hinged annulus drops over the upper end of the core cutout by the drill, and upon lifting the said tube D the annulus falls atan angle, so as to grasp the core and carry it up with it, removing itfrom the well.

Having thus described my invention, what I claim, and desire to secureby Letters Patent,-

1. A drill-tool constructed of a single piece cable on account ofaccumulated material, the

nulus at its lower end, adapted to operate substantial'ly in the mannerspecified.

In testimony whereof I affix my signature in presence of two witnesses.

FRED I). PARKER. Witnesses:

GEO. A. Perrcrmnn, J AMES 0. STARKWEATHER.

